
import time

def sing():
    i = 0
    while(i < 10):
        print("唱")
        time.sleep(1)
        i += 1

def dance():
    i = 0
    while(i < 10):
        print("跳")
        time.sleep(1)
        i += 1

def rap():
    i = 0
    while(i < 10):
        print("rap")
        time.sleep(1)
        i += 1

def basketball():
    i = 0
    while(i < 10):
        print("篮球")
        time.sleep(1)
        i += 1

import threading

thread_1 = threading.Thread(target= sing)
thread_2 = threading.Thread(target= dance)
thread_3 = threading.Thread(target= rap)
thread_4 = threading.Thread(target= basketball)

thread_1.start()
thread_2.start()
thread_3.start()
thread_4.start()